Radeon HD 7000 Series

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AMD Radeon HD 7000 Series
AMD Radeon graphics logo
Release date Announced: December 22, 2011
Released: January 9, 2012
Codename Southern Islands
London
Trinity
Sea Islands
Fabrication process and transistors
  • 292M 40 nm (Cedar)
  • 370M 40 nm (Caicos)
  • 716M 40 nm (Turks)
  • 1,500M 28 nm (Cape Verde)
  • 2,080M 28 nm (Bonaire)
  • 2,800M 28 nm (Pitcairn)
  • 4,313M 28 nm (Tahiti)
Cards
Entry-level 73xx - 76xx
Enthusiast 7950, 7970, 7990
Rendering support
Direct3D Direct3D 11.2 and partial Direct3D 12
Shader Model 5.0
OpenCL OpenCL 1.2
OpenGL OpenGL 4.4[1]
History
Predecessor Radeon HD 6000 Series
Variant Radeon HD 8000 Series
Successor Radeon Rx 200 Series

The Radeon HD 7000 Series, based on Graphics Core Next 1.0 "Southern Islands", is further products series in the family of Radeon GPUs developed by AMD.[2] AMD builds Southern Islands series graphics chips based on the 28 nm manufacturing process at TSMC.[3] The primary competitor of Southern Islands, Nvidia's GeForce 600 Series (also manufactured at TSMC), also shipped during Q1 2012, largely due to the immaturity of the 28 nm process.[4]

Architecture[edit]

This article is about all products under the Radeon HD 7000 Series brand. Graphics Core Next was introduced with the Radeon HD 7000 Series.

Multi-monitor support[edit]

Main article: AMD Eyefinity

The AMD Eyefinity-branded on-die display controllers were introduced in September 2009 in the Radeon HD 5000 Series and have been present in all products since.[5]

Video acceleration[edit]

Both Unified Video Decoder (UVD) and Video Codec Engine (VCE) are present on the dies of all products and supported by AMD Catalyst and by the free and open-source graphics device driver#ATI/AMD.

Desktop products[edit]

The 28 nm product line is divided in three dies (Tahiti, Pitcairn, and Cape Verde), each one roughly double in shader units compared to its small brethren (32, 20, and respectively 10 GCN compute units). While this gives roughly a doubling of single-precision floating point, there is however a significant departure in double-precision compute power. Tahiti has a maximum ¼ double precision throughput relative to its single precision throughput, while the other two smaller consumer dies can only achieve a 1/16 ratio.[6] While each bigger die has two additional memory controllers widening its bus by 128 bits, Pitcairn however has the same front-end dual tesselator units as Tahiti giving it similar performance to its larger brethren in DX11 tessellation benchmarks.[6]

Radeon HD 7900[edit]

Codenamed Tahiti, the Radeon HD 7900 series was announced on December 22, 2011. Products include the Radeon 7970 GHz Edition, Radeon HD 7970 and Radeon HD 7950. The Radeon HD 7970 features 2048 usable stream cores, whereas the Radeon HD 7950 has 1792 usable stream cores, as 256 out of the 2048 cores are disabled during product binning which detects defective areas of a chip. The cards are the first products to take advantage of AMD's new "Graphics Core Next" compute architecture. Both cards are equipped with 3 GB GDDR5 memory and manufactured on TSMC's 28 nm process. The Tahiti GPU is also used in the Radeon HD 7870 XT, released November 19, 2012. In this case one quarter of the stream processors are disabled, giving 1536 usable cores. Additionally, the memory interface is downgraded from 384-bit to 256-bit, along with a memory size reduction from 3 GB to 2 GB.

Radeon HD 7800[edit]

Codenamed Pitcairn, the Radeon HD 7800 series was formally unveiled on March 5, 2012, with retail availability from March 19, 2012. Products include the Radeon HD 7870 and Radeon HD 7850. The Radeon HD 7870 features 1280 usable stream cores, whereas the Radeon HD 7850 has 1024 usable stream cores. Both cards are equipped with 2 GB GDDR5 memory and manufactured on TSMC's 28 nm process.[7]


Radeon HD 7700[edit]

Codenamed Cape Verde, the Radeon HD 7700 series was released on February 15, 2012. Products include the Radeon HD 7770 GHz Edition and Radeon HD 7750. The Radeon HD 7770 GHz Edition features 640 stream cores based on the GCN architecture, whereas the Radeon HD 7750 has only 512 usable stream cores. Both cards are equipped with 1 GB GDDR5 memory and manufactured in 28 nm. On March 22, 2013 another card, Radeon HD 7790, was introduced in this series. This card is based on the Bonaire architecture, witch features 896 stream cores using GCN 1.1 technology, an incremental update. On May 2013, AMD launched the Radeon HD 7730, based on the Cape Verde LE graphics processor. It features a 128-bit memory bus, 384 stream cores, 8 ROPs, and a core clock speed of up to 800MHz. The HD 7730 came with GDDR5 and DDR3 variants, running on memory clock speeds of 1125MHz and 900MHz, respectfully. Idle power usage was lowered by 14.5% (47W) compared to the Radeon HD 7750 (55W).[8][9]

Chipset table[edit]

Model Launch Codename Fab (nm) Transistors (Million) Die Size (mm) Bus interface Memory (MiB) Clock rate Config core1 Fillrate Memory Processing Power
GFLOPS
TDP3 (W) GFLOPS/W
Single Precision
Release Price (USD)
Core (MHz) Boost (MHz) Memory (MHz) Pixel (GP/s) Texture (GT/s) Bandwidth (GB/s)2 Bus type Bus width (bit) Single Precision Double Precision Idle Max.
Radeon HD 7350 Jan 2012 (OEM) Cedar 40 292 59 PCIe 2.1 ×16 256
512
400
650
N/A 400
800
900
80:8:4 1.6
2.6
3.2
5.2
6.4
12.8
DDR2
DDR3
64 104 No 6.4 19.1 5.45 OEM
Radeon HD 7450 Jan 2012 (OEM) Caicos 40 370 67 PCIe 2.1 ×16 512
1024
625
750
N/A 533
800
160:8:4 2.5
3.0
5.0
6.0
8.5
12.8
GDDR3 64 200
240
No 9 18 11.11
13.33
OEM
Radeon HD 7470 Jan 2012 (OEM) Caicos 40 370 67 PCIe 2.1 ×16 512
1024
625
750
N/A 800
900
160:8:4 2.5
3.0
5.0
6.0
25.6
28.8
GDDR5 64 200
240
No 9 27 7.41
8.89
OEM
Radeon HD 7510 Feb 2013 (OEM) Turks LE 40 716 118 PCIe 2.1 ×16 1024 650 N/A 667 320:16:4 2.6 10.4 21.3 GDDR3 128 416 No OEM
Radeon HD 7570 Jan 2012 (OEM) Turks PRO-L 40 716 118 PCIe 2.1 ×16 512
1024
650
650
N/A 900
1000
480:24:8 5.2 15.6 28.8
64
GDDR3
GDDR5
128 624 No 10
11
44
60
14.18
10.4
OEM
Radeon HD 7670 Jan 2012 (OEM) Turks XT 40 716 118 PCIe 2.1 ×16 512
1024
800
800
N/A 1000
1000
448:24:8 6.4 19.2 64 GDDR5 128 768 No 12 66 11.64 OEM
Radeon HD 7730 Apr 2013 Cape Verde LE 28 1500 123 PCIe 3.0 ×16 1024 800 N/A 1125 384:24:16 12.8 19.2 72 GDDR5 128 614.4 38.4 10 47 13.07 $80
Radeon HD 7750 Feb 15, 2012 Cape Verde PRO 28 1500 123 PCIe 3.0 ×16 1024
2048
4096
800
900
N/A 1125
1125
512:32:16 12.8
14.4
25.6
28.8
72 DDR3
GDDR5
128 819.2
921.6
51.2
57.6
10 55
75
14.89
12.29
$110
Radeon HD 7770
GHz Edition
Feb 15, 2012 Cape Verde XT 28 1500 123 PCIe 3.0 ×16 1024
2048
1000
1100
1150
N/A 1125
1125
1250
1300
640:40:16 16
17.6
18
40
44
46
72
80
83.6
GDDR5 128 1280
1408
1478
80
88
90
10 80
100
16
17.6
$160
Radeon HD 7790 Mar 22, 2013 Bonaire XT 28 2080 160 PCIe 3.0 ×16 1024
2048
1000 N/A 1500 896:56:16 16.0 56.0 96 GDDR5 128 1792 128 10 85 21.08 $150
Radeon HD 7850 Mar 19, 2012 Pitcairn PRO 28 2800 212 PCIe 3.0 ×16 1024
2048
860
860
N/A 1200
1200
1024:64:32 27.52 55.04 153.6 GDDR5 256 1761.28 110.08 10 130 13.548 $250
Radeon HD 7870
GHz Edition
Mar 19, 2012 Pitcairn XT 28 2800 212 PCIe 3.0 ×16 2048 1000 N/A 1200 1280:80:32 32 80 153.6 GDDR5 256 2560 160 10 175 14.629 $350
Radeon HD 7870 XT Nov 19, 2012 Tahiti LE 28 4313 352 PCIe 3.0 ×16 2048 925 975 1500 1536:96:32 29.6 88.8 192.0 GDDR5 256 2841.6
2995.2
710.4
748.8
15 185 16.19 $280
Radeon HD 7950 Jan 31, 2012 Tahiti PRO
Tahiti PRO-H
28 4313 352 PCIe 3.0 ×16 3072 800 N/A 1250 1792:112:32 25.6 89.6 240 GDDR5 384 2867.2 717 15 200 14.336 $450
Radeon HD 7950 Boost Aug 14, 2012 Tahiti PRO2
Tahiti PRO-H2
28 4313 352 PCIe 3.0 ×16 3072 850 925 1250 1792:112:32 29.6 103.6 240 GDDR5 384 3046.4
3315.2
761.6
828.8
15 225+ 14.734 $350
Radeon HD 7970 Jan 9, 2012 Tahiti XT 28 4313 352 PCIe 3.0 ×16 3072
6144
925 N/A 1375 2048:128:32 29.6 118.4 264 GDDR5 384 3788.8 947.2 15 250 15.155 $550
Radeon HD 7970
GHz Edition
Jun 22, 2012 Tahiti XT2 28 4313 352 PCIe 3.0 ×16 3072
6144
1000 1050 1500 2048:128:32 32 128.0 288 GDDR5 384 4096
4300
1024
1075
15 250+ 17.2 $500
Radeon HD 7990 Apr 24, 2013 Malta 28 4313x2 352x2 PCIe 3.0 ×16 3072x2 950 1000 1500 2048:128:32x2 32x2 128x2 288x2 GDDR5 384x2 8200 1894 15 375 21.86 $1000
Model Launch Codename Fab (nm) Transistors (Million) Die Size (mm2) Bus interface Memory (MiB) Core (MHz) Boost (MHz) Memory (MHz) Config core1 Pixel (GP/s) Texture (GT/s) Bandwidth (GB/s)2 Bus type Bus width (bit) Single Precision Double Precision Idle Max. GFLOPS/W
Single Precision
Release Price (USD)
Clock rate Fillrate Memory Processing Power
GFLOPS
TDP3 (W)

1 Unified Shaders : Texture Mapping Units : Render Output Units
2 The effective data transfer rate of GDDR5 is quadruple its nominal clock, instead of double as with other DDR memory.
3 The TDP is reference design TDP values from AMD. Different non-reference board designs from vendors may lead to slight variations in actual TDP.

Mobile products[edit]

Integrated (IGP) products[edit]

Trinity APU Series (HD 7xxxD)[edit]

Model Released Code name Fab (nm) Core Clock (MHz) Config core1 Fillrate Shared Memory GFLOPS Combined TDP2 (W) GFLOPS/W Notes
Pixel (GP/s) Texture (GT/s) Bandwidth (GB/s) Bus type Bus width (bit) Idle Max.
Radeon HD 7480D June 1, 2012 Devastator 32 723 128:8:4  ?  ? 25.6 DDR3-1600 128 185 Unknown 65 Unknown used in A4-5300 APU
Radeon HD 7540D June 1, 2012 Devastator 760 192:12:4  ?  ? 29.9 DDR3-1866 128 292 Unknown 65 Unknown used in A6-5400K APU
Radeon HD 7560D June 1, 2012 Devastator 760 256:16:4  ?  ? 29.9 DDR3-1866 128 389 Unknown 65-100 Unknown used in A8-5500 and A8-5600K APUs
Radeon HD 7660D June 1, 2012 Devastator 760-800 384:24:8 2.7 16.2 29.9 DDR3-1866 128 584-614 Unknown 65-100 Unknown used in A10-5700 (760 MHz) and A10-5800K (800 MHz) APUs
Model Launch Code name Fab
(nm)
Clock rate (MHz) Config core1 Fillrate Shared memory GFLOPS (Single-precision)
Core (Base) Core (Boost) Pixel (GP/s) Texture (GT/s) Bandwidth (GB/s) Bus type2 Bus width (bit)
Radeon HD 7400G September 1, 2012 - 32 327 424 192:12:4 1.31 3.92 21.33 to 34.13 DDR3-1333 to 2133 128 125.57
Radeon HD 7420G June 1, 2012 Scrapper 480 655 128:8:4 1.92 3.84 122.88
Radeon HD 7500G May 15, 2012 - 327 424 256:16:8 2.62 5.23 167.42
Radeon HD 7520G June 1, 2012 Scrapper 496 685 192:12:4 1.98 5.95 190.46
Radeon HD 7600G September 1, 2012 - 320 424 384:24:8 2.56 7.68 245.76
Radeon HD 7620G May 15, 2012 - 360 497 384:24:8 2.88 8.64 276.48
Radeon HD 7640G May 15, 2012 Devastator 496 685 256:16:8 3.97 7.94 253.95
Radeon HD 7660G May 15, 2012 Devastator 496 685 384:24:8 3.97 11.9 380.93

TDP specified for AMD reference designs, includes CPU power consumption. Actual TDP of retail products may vary.

Graphics device drivers[edit]

AMD's proprietary graphics device driver "Catalyst"[edit]

Main article: AMD Catalyst

AMD Catalyst is being developed for Microsoft Windows and Linux. As of July 2014, other operating system are not officially supported. This may be different for the AMD FirePro brand, which is based on identical hardware but features OpenGL-certified graphics device drivers.

AMD Catalyst supports of course all features advertised for the Radeon brand.

Free and open-source graphics device driver "Radeon"[edit]

The free and open-source drivers are primarily developed on Linux and for Linux, but have been ported to other operating systems as well. Each driver is composed out of five parts:

  1. Linux kernel component DRM
  2. Linux kernel component KMS driver: basically the device driver for the display controller
  3. user-space component libDRM
  4. user-space component in Mesa 3D;
  5. a special and distinct 2D graphics device driver for X.Org Server, which if finally about to be replaced by Glamor

The free and open-source "Radeon" graphics driver supports most of the features implemented into the Radeon line of GPUs.[11]

The free and open-source "Radeon" graphics device drivers are not reverse engineered, but based on documentation released by AMD.[12]

See also[edit]

References[edit]

  1. ^ "AMD Catalyst™ 14.4 Windows® Release Notes". AMD. 2014-04-29. Retrieved 2014-08-11. 
  2. ^ Demerjian, Charlie (April 6, 2011). "AMD will out the 'Southern Islands' GPU architecture early". SemiAccurate. Archived from the original on October 1, 2013. Retrieved October 1, 2013. 
  3. ^ "Report: TSMC wins key 40-, 28-nm deals". EETimes. Archived from the original on June 28, 2011. Retrieved 2011-06-28. 
  4. ^ Charlie Demerjian (July 19, 2011). "Southern Islands, Kepler, and Apple’s A6 process puzzle outed". Retrieved December 1, 2013. 
  5. ^ "AMD Eyefinity: FAQ". AMD. 2011-05-17. Retrieved 2014-07-02. 
  6. ^ a b "Review: AMD Radeon HD 7850 & 7870" (in French). BeHardware. March 5, 2012. Retrieved August 22, 2013. 
  7. ^ "AMD Radeon HD 7870 GHz Edition & Radeon HD 7850 Review: Rounding Out Southern Islands". AnandTech. Retrieved August 22, 2013. 
  8. ^ http://www.tomshardware.com/reviews/radeon-hd-7730-cape-verde-review,3575.html
  9. ^ http://www.amd.com/en-us/products/graphics/desktop/7000/7700#
  10. ^ "Berechnungen mit doppelter Genauigkeit auf GPU-Teil von Trinity möglich". Planet3dnow.de. August 13, 2013. Retrieved August 22, 2013. 
  11. ^ "RadeonFeature". Xorg.freedesktop.org. Retrieved 2014-07-06. 
  12. ^ "AMD Developer Guideds". 

External links[edit]